#include <stdio.h>
#include <conio.h>
#include <malloc.h>
#include <graphics.h>
#include <dos.h>
#include <string.h>
void beep(int freq,int t)
{
	sound(freq);
	delay(t);
	nosound();
}

int main()
{
	char *usr;
	clrscr();
	printf("\nWelcome to sab0 interface...");
	usr=(char *)malloc(100);
	beep(800,100);
	while(1)
	{
		printf("\n[sx4]");
		scanf("%s",usr);
		if(strcmp(usr,"")==1)
		{
		}
		else if(strcmp(usr,"exit")==1)
		{
			printf("\nBye...");
			delay(200);
			return 0;
		}
	}
}